Comisión de las Comunidades Europeas. (1998). Transport research fourth framework programme urban transport: Quattro, quality approach in tendering urban public transport operations. Office for Official Publications of the European Communities.
Chicago Style (17th ed.) CitationComisión de las Comunidades Europeas. Transport Research Fourth Framework Programme Urban Transport: Quattro, Quality Approach in Tendering Urban Public Transport Operations. Luxembourg: Office for Official Publications of the European Communities, 1998.
MLA (9th ed.) CitationComisión de las Comunidades Europeas. Transport Research Fourth Framework Programme Urban Transport: Quattro, Quality Approach in Tendering Urban Public Transport Operations. Office for Official Publications of the European Communities, 1998.